Question

Heating of a sugar is a __________change.

Answer 1

Physical Change

• It is a temporary change and affects only physical properties like shape, size, etc
• In a physical change, the composition remains the same but the change is only in the arrangement of molecules.

Reason for: Heating of sugar is a Physical change

• Sugar is composed of Carbon$\left(\mathrm{C}\right)$, Hydrogen $\left(\mathrm{H}\right)$, and Oxygen $\left(\mathrm{O}\right)$ atoms.
• These elements react with the fire and transform into a liquid when heated.
• The sugar atoms interact with the oxygen in the air, creating new groups of atoms as a result of the heat.
• The chemical reaction releases energy in the form of smoke and black soot.
• As a result, only the physical state changes.

Hence, due to no change in the physical state, the heating of sugar is a physical change.